121000111222113 has 16 divisors (see below), whose sum is σ = 188694130561600. Its totient is φ = 76421122876800.

The previous prime is 121000111221937. The next prime is 121000111222129. The reversal of 121000111222113 is 311222111000121.

It is a happy number.

It is not a de Polignac number, because 121000111222113 - 2¹⁶ = 121000111156577 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121000111221113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 117933831088 + ... + 117933832113.

It is an arithmetic number, because the mean of its divisors is an integer number (11793383160100).

Almost surely, 2^{121000111222113} is an apocalyptic number.

It is an amenable number.

121000111222113 is a deficient number, since it is larger than the sum of its proper divisors (67694019339487).

121000111222113 is a wasteful number, since it uses less digits than its factorization.

121000111222113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235867663229 (or 235867663223 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 121000111222113 its reverse (311222111000121), we get a palindrome (432222222222234).

The spelling of 121000111222113 in words is "one hundred twenty-one trillion, one hundred eleven million, two hundred twenty-two thousand, one hundred thirteen".